CN104868513A - Power battery pre-charging process control method - Google Patents
Power battery pre-charging process control method Download PDFInfo
- Publication number
- CN104868513A CN104868513A CN201410455417.7A CN201410455417A CN104868513A CN 104868513 A CN104868513 A CN 104868513A CN 201410455417 A CN201410455417 A CN 201410455417A CN 104868513 A CN104868513 A CN 104868513A
- Authority
- CN
- China
- Prior art keywords
- relay
- preliminary filling
- control method
- negative pole
- load voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 72
- 238000004886 process control Methods 0.000 title abstract 2
- 238000003745 diagnosis Methods 0.000 claims description 12
- 238000005429 filling process Methods 0.000 claims description 10
- 238000002203 pretreatment Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a power battery pre-charging process control method. The control method comprises steps: S1, whether load voltage is in a usable range is detected, if yes, a fourth step is carried out, and if not, a second step is carried out; S2, whether a negative electrode relay is disconnected is detected, if yes, a third step is carried out, and if not, the fourth step is carried out; S3, the negative electrode relay is closed, time is delayed, and the first step is carried out; S4, the negative electrode relay and a pre-charging relay are diagnosed, in case of fault, an error is reported, or otherwise, a fifth step is carried out; and S5, pre-charging is carried out, whether a pre-charging completion condition is completed is judged, if yes, pre-charging is completed, or otherwise, whether the pre-charging time exceeds is judged. The control method of the invention detects the negative electrode relay and the pre-charging relay at a pre-charging start stage, and thus, when pre-charging is started officially, the negative electrode relay and the pre-charging relay are ensured to be in the closed state; and in addition, detection of excessive pre-charging time is set, and thus, quick and accurate pre-charging process completion can be better ensured.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to a kind of control method of electrokinetic cell pre-charge process.
Background technology
Electric automobile, in startup power up, first should carry out precharge.Whole pre-charge process comprises the closed and opening action of negative pole relay and preliminary filling relay, and preliminary filling completes the determination methods with preliminary filling time-out.The control of pre-charge process is to the safety and reliability important of relay life, power brick and car load.
The current patent relevant to electrokinetic cell control method and open source literature mainly concentrate on heat management, Balance route and state-of-charge calculating aspect.Precharge control method of the prior art only sends negative pole relay and preliminary filling relay closes action command, namely starts to carry out preliminary filling, until load voltage reaches requirement.When starting preliminary filling, do not consider whether negative pole relay and the action of preliminary filling relay closes complete really, also do not consider load voltage, and consider abundant not for preliminary filling time-out error etc.
Therefore wish that a kind of control method of electrokinetic cell pre-charge process overcomes or at least to alleviate in the above-mentioned defect of prior art one or more.
Summary of the invention
A kind of control method of electrokinetic cell pre-charge process is the object of the present invention is to provide to overcome or at least to alleviate in the above-mentioned defect of prior art one or more.
For achieving the above object, the invention provides a kind of control method of electrokinetic cell pre-charge process, described control method comprises the steps:
Step S1: detect load voltage whether in usable range, if load voltage is in usable range, go to step S4; Otherwise go to step S2;
Step S2: detect negative pole relay and whether disconnect, if YES, go to step S3, otherwise go to step S4;
Step S3: closed negative pole relay, time delay first duration, goes to step S1;
Step S4: anticathode relay, pre-charge-relay are diagnosed, if any fault, reports an error, otherwise, go to step S5;
Step S5: closed preliminary filling relay, starts to carry out precharge, judges that preliminary filling completes condition and whether completes, if YES, terminate pre-charge process, otherwise, judge that whether precharge time is overtime, if YES, output overtime miscue information, otherwise, proceed precharge.
Preferably, in step s 5, judge that preliminary filling completes condition and whether completes by judging following condition whether all to meet and carry out,
(U
2be less than or equal to U
1(1+p)) and (U *
2be more than or equal to U
1* (1-p));
Load voltage increases gradient and meets the requirements; And
(U
1-U
l) being less than or equal to q, q is the magnitude of voltage of setting,
Wherein,
U
1represent the voltage of battery anode,
U
2represent the voltage of load positive pole,
P is calibration value, is the numerical value between 0-1,
U
lrefer to load voltage.
Preferably, p is the numerical value in 5% to 20% scope.
Preferably, q is at U
110% to 20% scope in.
Preferably, load voltage growth gradient meets the requirements and refers to: the difference in former and later two moment of computational load voltage in real time, when each difference is greater than setting, a fixed value is added to the error number summation being initially 0, if error number summation is less than the numerical value of allowing in preliminary filling process, think that load voltage increases gradient and meets the requirements, otherwise think undesirable.
Preferably, step S4 comprises the steps:
Step S41: disconnect negative pole relay,
Step S42: closed preliminary filling relay,
Step S43: diagnosis negative pole relay disconnects, and as do not disconnected, output negative pole relay does not disconnect mistake, otherwise goes to step S44,
Step S44: diagnosis preliminary filling relay closes, as not closed in diagnosed, export the not closed mistake of preliminary filling relay, otherwise go to step S45,
Step S45: disconnect preliminary filling relay, time delay the 3rd duration, closed negative pole relay, goes to step S46,
Step S46: diagnosis preliminary filling relay disconnects, as do not disconnected, exporting preliminary filling relay and not disconnecting mistake, otherwise going to step S5.
Preferably, time delay second duration after the disconnection negative pole relay of step S41, then go to step S42.
Preferably, step S4 comprises a pre-treatment step S40 further: determine whether U
lbe greater than U1*
por whether receive cancellation diagnostic instruction, if so, go to step S5, otherwise go to step S41, wherein pre-treatment step S40 performed before step S41.
The state of control method anticathode relay and preliminary filling relay in preliminary filling initial period of electrokinetic cell pre-charge process of the present invention detects, thus guarantee when formally starting preliminary filling, negative pole relay and preliminary filling relay are in closure state, and be provided with the detection of time-out precharge time, thus, preliminary filling process can be realized better and quick and precisely complete.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electrokinetic cell circuit.
Fig. 2 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a first embodiment of the present invention.
Fig. 3 and Fig. 4 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a second embodiment of the present invention.
Fig. 5 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a third embodiment of the present invention.
Fig. 6 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a fourth embodiment of the present invention.
Embodiment
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Control method according to electrokinetic cell pre-charge process of the present invention comprises the steps:
Step S1: detect load voltage whether in usable range, if load voltage is in usable range, go to step S4; Otherwise go to step S2;
Step S2: detect negative pole relay and whether disconnect, if YES, go to step S3, otherwise go to step S4;
Step S3: closed negative pole relay, time delay first duration, goes to step S1;
Step S4: anticathode relay, pre-charge-relay are diagnosed, if any fault, reports an error, otherwise, go to step S5;
Step S5: closed preliminary filling relay, starts to carry out precharge, judges that preliminary filling completes condition and whether completes, if YES, terminate pre-charge process, otherwise, judge that whether precharge time is overtime, if YES, output overtime miscue information, otherwise, proceed precharge.
The state of control method anticathode relay and preliminary filling relay in preliminary filling initial period of electrokinetic cell pre-charge process of the present invention detects, thus guarantee when formally starting preliminary filling, negative pole relay and preliminary filling relay are in closure state, and be provided with the detection of time-out precharge time, thus, preliminary filling process can be realized better and quick and precisely complete the schematic diagram that Fig. 1 is electrokinetic cell circuit.In the electrokinetic cell circuit shown in Fig. 1, the positive pole of electrokinetic cell is connected with load positive pole by preliminary filling relay in parallel, positive pole relay, and the negative pole of electrokinetic cell is by negative pole relay and load negative pole.Wherein, U
1represent the voltage of battery anode, U
2represent the voltage of load positive pole, U
3represent the voltage of load negative pole,
Fig. 2 is that the illustrated control method of schematic diagram of the control method of electrokinetic cell pre-charge process according to a first embodiment of the present invention comprises the steps:
Step S1: detect load voltage whether in usable range, if load voltage is in usable range, go to step S4; Otherwise go to step S2;
Step S2: detect negative pole relay and whether disconnect, if YES, go to step S3, otherwise go to step S4;
Step S3: closed negative pole relay, time delay first duration, goes to step S1;
Step S4: anticathode relay, pre-charge-relay are diagnosed, if any fault, reports an error, otherwise, go to step S5;
Step S5: closed preliminary filling relay, starts to carry out precharge, judges that preliminary filling completes condition and whether completes, if YES, terminate pre-charge process, otherwise, judge that whether precharge time is overtime, if YES, output overtime miscue information, otherwise, proceed precharge.
In step s 5, judge that preliminary filling completes condition and whether completes by judging following condition whether all to meet and carry out,
(U
2be less than or equal to U
1(1+p)) and (U *
2be more than or equal to U
1* (1-p));
Load voltage increases gradient and meets the requirements; And
(U
1-U
l) being less than or equal to q, q is the magnitude of voltage of setting.
Wherein, U
1represent the voltage of battery anode, U
2represent the voltage of load positive pole, p is calibration value, is the numerical value between 0-1, U
lrefer to load voltage.Preferably, p is the numerical value in 5% to 20% scope.Preferably, q is at U
110% to 20% scope in.
Load voltage growth gradient meets the requirements and refers to: the difference in former and later two moment of computational load voltage in real time, when each difference is greater than setting, a fixed value is added to the error number summation being initially 0, if error number summation is less than the numerical value of allowing in preliminary filling process, think that load voltage increases gradient and meets the requirements, otherwise think undesirable.
Preferably, step S4 can comprise the steps (not shown).
Step S41: disconnect negative pole relay,
Step S42: closed preliminary filling relay,
Step S43: diagnosis negative pole relay disconnects, and as do not disconnected, output negative pole relay does not disconnect mistake, otherwise goes to step S44,
Step S44: diagnosis preliminary filling relay closes, as not closed in diagnosed, export the not closed mistake of preliminary filling relay, otherwise go to step S45,
Step S45: disconnect preliminary filling relay, time delay the 3rd duration, closed negative pole relay, goes to step S46,
Step S46: diagnosis preliminary filling relay disconnects, as do not disconnected, exporting preliminary filling relay and not disconnecting mistake, otherwise going to step S5.
Advantageously, time delay second duration after the disconnection negative pole relay of step S41, then go to step S42.
Also advantageously, step S4 comprises a pre-treatment step S40 further: determine whether U
lbe greater than U1*p or whether receive cancellation diagnostic instruction, if so, go to step S5, otherwise go to step S41, wherein pre-treatment step S40 performed before step S41.
Fig. 3 and Fig. 4 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a second embodiment of the present invention, and specific algorithm is as follows.
1) initialization is carried out.That is, when needs carry out pre-charge process, first initialization is carried out.Particularly, after receiving precharge command, by the counting variable initialization in control method or control program, in the illustrated embodiment, be carry out following setting: i
1=0, i
2=0, i
3=0, i
4=0.Above-mentioned counting variable is mainly used in timing.Also software or hardware timer can be adopted to replace.Described precharge command is determined according to firing key and battery status usually.
2) judge whether " load voltage is unavailable and negative pole relay is off state " (condition 1) is set up, thus, using the state of load voltage and negative pole relay as the essential condition starting pre-charge process.Load voltage is unavailable when referring to that three relays (negative pole relay, preliminary filling relay and positive pole relay) are opened, and load circuit voltage can not transfer to control circuit.Dependent diagnostic action is not carried out when load voltage is unavailable.
3) if condition 1 meets, judge whether negative pole relay is closure state, if not closed, send instruction and carry out closed negative pole relay, wait for certain hour (first time period), the stand-by period uses counting variable i
1be added to and be more than or equal to set point i
c1realize expression, i
c1for scalar quantity, then judge that whether " load voltage is unavailable " this condition meets, if met, returns 2).Be understandable that, returning 2) before, can i be set
1=0, and carry out once time-out judgement.This by arranging another counting variable and when initial, its value being set to 0, can return 2) before its value is added 1, and judge to realize this with set point and overtimely to judge.If overtime, then output overtime mistake, represent closed negative pole relay failure, or load voltage is unavailable all the time.
If do not meet " load voltage is unavailable " this condition, judge further whether " load voltage can with " this condition meets, if " load voltage can with " this condition is satisfied, enter module B (preliminary filling and preliminary filling complete judge module).Be understandable that, this step is the redundant operation carried out to confirm " load voltage can be used " further, can omit.
4) if condition 1 does not meet, " U is judged
lbe less than U
1* p or artificially cancel diagnosis " whether (condition 2) meet.U
1and U
lrepresent U in Fig. 1 respectively
1and load voltage, p is calibration value, such as, be the numerical value in 5% to 20% scope.
If condition 2 meets, enter preliminary filling and preliminary filling completes judge module (i.e. module B).
If condition 2 does not meet, judge whether negative pole relay closes, if closed, disconnect negative pole relay and wait for that certain hour (uses i
2be more than or equal to i
c2expression, i
c2for scalar quantity) close preliminary filling relay afterwards, if do not meet directly closed preliminary filling relay,
Enter modules A subsequently.
5) in modules A, negative pole relay is first diagnosed whether to disconnect, if not disconnect, output negative pole do not disconnect mistake; If disconnected, judge whether preliminary filling relay closes, if not closed, the not closed mistake of output preliminary filling, if closed, disconnect preliminary filling relay; (i is used after waiting for certain hour
3be more than or equal to i
c3expression, i
c3for scalar quantity) closed negative pole relay, judge whether preliminary filling relay disconnects, if not disconnect, export preliminary filling relay and do not disconnect mistake, if to disconnect, enter preliminary filling and preliminary filling completes judge module (i.e. module B).
6) in module B, first closed preliminary filling relay, whether diagnosis negative pole relay closes, if not closed, the not closed mistake of output negative pole relay; If closed, judge that preliminary filling completes condition (condition 3) and whether meets, if met, whole preliminary filling process completes, if preliminary filling completes condition, (condition 3) does not meet, and judges whether that time-out (uses i
4be more than or equal to ic
4expression, ic
4for scalar quantity), if time-out exports preliminary filling time-out error.
Preliminary filling completes condition (condition 3) and can arrange as required.In one embodiment, condition 3 is set to (U
2be less than or equal to U
1(1+p)) and (U *
2be more than or equal to U
1(1-p)) and (load voltage increase gradient meet the requirements) and ((U *
1-U
l) be less than or equal to q).Wherein U
2represent U in Fig. 1
2voltage, q is calibration value, such as, at U
110% to 20% scope in.
Whether load voltage increases gradient and meets the requirements and judge in the following manner: can the difference in former and later two moment of computational load voltage in real time in preliminary filling process, when each moment, difference was greater than setting, a fixed value is added to error number summation (being initially 0), if in preliminary filling process error number summation be less than allow numerical value, think that increasing gradient meets the requirements, otherwise reports an error.Be understandable that, the setting in the time interval between former and later two moment, can be arranged as the case may be.
The present invention proposes the action sequence of negative pole and preliminary filling relay in preliminary filling process, and preliminary filling relay front and back end voltage, load voltage and load voltage are increased gradient as judging the condition whether preliminary filling completes, guarantee that preliminary filling process quick and precisely completes; And give the diagnosis sequential of negative pole relay, preliminary filling relay and time-out error, guarantee the fail safe of power brick and vehicle.
Fig. 5 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a third embodiment of the present invention.The control method of the 3rd embodiment is substantially identical with the control method of the second embodiment, difference is mainly, after wait first time period, be directly back to 2) judge whether " load voltage is unavailable and negative pole relay is off state " (condition 1) is set up.That is, when load voltage can be used, also may anticathode relay and preliminary filling relay diagnose, instead of when load voltage can with directly carry out preliminary filling and preliminary filling completes judgement.
Fig. 6 is the indicative flowchart of the control method of electrokinetic cell pre-charge process according to a fourth embodiment of the present invention.The control method of Fig. 6 eliminates the redundancy determination in the second embodiment: judge whether load voltage can be used.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a control method for electrokinetic cell pre-charge process, is characterized in that, comprises the steps:
Step S1: detect load voltage whether in usable range, if load voltage is in usable range, go to step S4; Otherwise go to step S2;
Step S2: detect negative pole relay and whether disconnect, if YES, go to step S3, otherwise go to step S4;
Step S3: closed negative pole relay, time delay first duration, goes to step S1;
Step S4: anticathode relay, pre-charge-relay are diagnosed, if any fault, reports an error, otherwise, go to step S5; And
Step S5: closed preliminary filling relay, starts to carry out precharge, judges that preliminary filling completes condition and whether completes, if YES, terminate pre-charge process, otherwise, judge that whether precharge time is overtime, if YES, output overtime miscue information, otherwise, proceed precharge.
2. the control method of electrokinetic cell pre-charge process as claimed in claim 1, is characterized in that, in step s 5, judges that preliminary filling completes condition and whether completes by judging following condition whether all to meet and carry out,
(U
2be less than or equal to U
1(1+p)) and (U *
2be more than or equal to U
1* (1-p));
Load voltage increases gradient and meets the requirements; And
(U
1-U
l) being less than or equal to q, q is the magnitude of voltage of setting,
Wherein, U
1represent the voltage of battery anode, U
2represent the voltage of load positive pole, p is calibration value, is the numerical value between 0-1, U
lrefer to load voltage.
3. the control method of electrokinetic cell pre-charge process as claimed in claim 2, it is characterized in that, p is the numerical value in 5% to 20% scope.
4. the control method of electrokinetic cell pre-charge process as claimed in claim 2, it is characterized in that, q is at U
110% to 20% scope in.
5. the control method of electrokinetic cell pre-charge process as claimed in claim 2, is characterized in that, load voltage growth gradient meets the requirements and refers to:
The difference in real-time former and later two moment of computational load voltage, when each difference is greater than setting, a fixed value is added to the error number summation being initially 0, if error number summation is less than the numerical value of allowing in preliminary filling process, think that load voltage increases gradient and meets the requirements, otherwise think undesirable.
6. the control method of electrokinetic cell pre-charge process as claimed in claim 1, it is characterized in that, step S4 comprises the steps:
Step S41: disconnect negative pole relay,
Step S42: closed preliminary filling relay,
Step S43: diagnosis negative pole relay disconnects, and as do not disconnected, output negative pole relay does not disconnect mistake, otherwise goes to step S44,
Step S44: diagnosis preliminary filling relay closes, as not closed in diagnosed, export the not closed mistake of preliminary filling relay, otherwise go to step S45,
Step S45: disconnect preliminary filling relay, time delay the 3rd duration, closed negative pole relay, goes to step S46,
Step S46: diagnosis preliminary filling relay disconnects, as do not disconnected, exporting preliminary filling relay and not disconnecting mistake, otherwise going to step S5.
7. the control method of electrokinetic cell pre-charge process as claimed in claim 6, is characterized in that, time delay second duration after the disconnection negative pole relay of step S41, then goes to step S42: closed preliminary filling relay.
8. the control method of electrokinetic cell pre-charge process as claimed in claim 1, it is characterized in that, step S4 comprises a pre-treatment step S40 further: determine whether U
lbe greater than U1*p or whether receive cancellation diagnostic instruction, if so, go to step S5, otherwise go to step S41, wherein pre-treatment step S40 performed before step S41.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410455417.7A CN104868513B (en) | 2014-09-09 | 2014-09-09 | A kind of control method of electrokinetic cell pre-charge process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410455417.7A CN104868513B (en) | 2014-09-09 | 2014-09-09 | A kind of control method of electrokinetic cell pre-charge process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104868513A true CN104868513A (en) | 2015-08-26 |
| CN104868513B CN104868513B (en) | 2017-10-10 |
Family
ID=53914145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410455417.7A Active CN104868513B (en) | 2014-09-09 | 2014-09-09 | A kind of control method of electrokinetic cell pre-charge process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104868513B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100059A (en) * | 2016-07-29 | 2016-11-09 | 观致汽车有限公司 | The control method of pre-charge circuit, battery management system and vehicle |
| CN108116267A (en) * | 2018-01-29 | 2018-06-05 | 北斗航天汽车（北京）有限公司 | Electric vehicle pre-charging presses detection device and method |
| CN109004719A (en) * | 2018-08-27 | 2018-12-14 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal precharge control method, device, computer equipment and storage medium |
| CN111731123A (en) * | 2019-03-25 | 2020-10-02 | 宁德时代新能源科技股份有限公司 | Battery system pre-inspection method, battery system and battery management system |
| CN113281641A (en) * | 2020-02-19 | 2021-08-20 | 丰田自动车株式会社 | Control device for power supply circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330225A (en) * | 2008-07-08 | 2008-12-24 | 奇瑞汽车股份有限公司 | Apparatus for monitoring high voltage output of power battery |
| CN102004222A (en) * | 2010-09-26 | 2011-04-06 | 奇瑞汽车股份有限公司 | Method and device for monitoring state of relay in vehicle-mounted battery management system |
| CN102175971A (en) * | 2011-02-18 | 2011-09-07 | 奇瑞汽车股份有限公司 | Relay state detection method and device of electric vehicle high-voltage system |
| CN103001265A (en) * | 2011-09-08 | 2013-03-27 | 北汽福田汽车股份有限公司 | High-voltage output electrical box for power battery |
| KR20140072522A (en) * | 2012-12-05 | 2014-06-13 | 현대자동차주식회사 | System and method for managing battery and vehicle equipped with the same system |
-
2014
- 2014-09-09 CN CN201410455417.7A patent/CN104868513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330225A (en) * | 2008-07-08 | 2008-12-24 | 奇瑞汽车股份有限公司 | Apparatus for monitoring high voltage output of power battery |
| CN102004222A (en) * | 2010-09-26 | 2011-04-06 | 奇瑞汽车股份有限公司 | Method and device for monitoring state of relay in vehicle-mounted battery management system |
| CN102175971A (en) * | 2011-02-18 | 2011-09-07 | 奇瑞汽车股份有限公司 | Relay state detection method and device of electric vehicle high-voltage system |
| CN103001265A (en) * | 2011-09-08 | 2013-03-27 | 北汽福田汽车股份有限公司 | High-voltage output electrical box for power battery |
| KR20140072522A (en) * | 2012-12-05 | 2014-06-13 | 현대자동차주식회사 | System and method for managing battery and vehicle equipped with the same system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100059A (en) * | 2016-07-29 | 2016-11-09 | 观致汽车有限公司 | The control method of pre-charge circuit, battery management system and vehicle |
| CN108116267A (en) * | 2018-01-29 | 2018-06-05 | 北斗航天汽车（北京）有限公司 | Electric vehicle pre-charging presses detection device and method |
| CN109004719A (en) * | 2018-08-27 | 2018-12-14 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal precharge control method, device, computer equipment and storage medium |
| CN109004719B (en) * | 2018-08-27 | 2022-04-22 | Tcl移动通信科技（宁波）有限公司 | Mobile terminal pre-charging control method and device, computer equipment and storage medium |
| CN111731123A (en) * | 2019-03-25 | 2020-10-02 | 宁德时代新能源科技股份有限公司 | Battery system pre-inspection method, battery system and battery management system |
| CN111731123B (en) * | 2019-03-25 | 2022-01-28 | 宁德时代新能源科技股份有限公司 | Battery system pre-inspection method, battery system and battery management system |
| CN113281641A (en) * | 2020-02-19 | 2021-08-20 | 丰田自动车株式会社 | Control device for power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104868513B (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102175971B (en) | Relay state detection method and device of electric vehicle high-voltage system | |
| CN105109347B (en) | Electric automobile high-voltage electrification circuit and its control method | |
| CN107482741B (en) | Charge control method and system | |
| CN103001265B (en) | High-voltage output electrical box for power battery | |
| CN104868513A (en) | Power battery pre-charging process control method | |
| CN110999023B (en) | Method and apparatus for balancing states of charge of individual cells of a battery system | |
| KR20180122429A (en) | Power System | |
| CN104730432B (en) | Insulation monitoring device | |
| CN104842798B (en) | The control method and system of electrokinetic cell relay disconnection process | |
| CN108839568A (en) | Electric vehicle pre-charging control method and device | |
| CN104827912B (en) | The detection means of relay | |
| CN104391241A (en) | High-voltage relay state detection circuit of power battery and method thereof | |
| CN109823285A (en) | Electric system, power-on and power-off control method and control system above and below electric automobile high-voltage | |
| CN106908719A (en) | The diagnostic system of vehicle DC charge relay | |
| CN103995211A (en) | Method and system for detecting vehicle high-voltage system | |
| US20200011929A1 (en) | Detection Circuit, Method, and Apparatus | |
| CN105356535A (en) | Function safety based total voltage processing method of battery management system | |
| CN207481815U (en) | Electric system above and below electric automobile high-voltage | |
| CN104882940A (en) | Charger power-down control method and device | |
| CN105071525A (en) | Uninterruptible power supply system | |
| CN208714975U (en) | Electric vehicle pre-charging control circuit | |
| CN108267686B (en) | Relay adhesion detection method of battery pack system | |
| CN111257742A (en) | Fault diagnosis method and device for relay and vehicle | |
| US11372044B2 (en) | System and method for detecting fault of quick charge relay | |
| CN113533926B (en) | Battery system charging circuit and fault detection method and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180508 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing baowo Automobile Co.,Ltd. Country or region after: China Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing treasure Car Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240304 Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Country or region after: China Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing baowo Automobile Co.,Ltd. Country or region before: China |